2212211111021 has 8 divisors (see below), whose sum is σ = 2215168404480. Its totient is φ = 2209255543792.

The previous prime is 2212211110979. The next prime is 2212211111023. The reversal of 2212211111021 is 1201111122122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2212211111021 - 2⁶ = 2212211110957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212211111023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2143460 + ... + 3003138.

It is an arithmetic number, because the mean of its divisors is an integer number (276896050560).

Almost surely, 2^{2212211111021} is an apocalyptic number.

It is an amenable number.

2212211111021 is a deficient number, since it is larger than the sum of its proper divisors (2957293459).

2212211111021 is a wasteful number, since it uses less digits than its factorization.

2212211111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863115.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2212211111021 its reverse (1201111122122), we get a palindrome (3413322233143).

It can be divided in two parts, 2212211 and 111021, that added together give a palindrome (2323232).

The spelling of 2212211111021 in words is "two trillion, two hundred twelve billion, two hundred eleven million, one hundred eleven thousand, twenty-one".